TAL Reference Manual

Statements

TAL Reference Manual—526371-001

12-41

Examples of WHILE Statements

1. This WHILE loop continues while ITEM is less than LEN:

LITERAL len = 100;

INT .array[0:len - 1];

INT item := 0;

WHILE item < len DO !WHILE statement

BEGIN

array[item] := 0;

item := item + 1;

END;

!ITEM equals LEN at this point

2. This WHILE loop increments INDEX until a nonalphabetic character occurs:

LITERAL len = 255;

STRING .array[0:len - 1];

INT index := -1;

WHILE (index < len - 1) AND

($ALPHA(array[index := index + 1]))

DO . . . ;